ASoC: Intel: sof_sdw: add SKU for Dell Latitude 9520

ASoC: Intel: sof_sdw: add SKU for Dell Latitude 9520

Different SKUs seem to be used for the same design.

BugLink: https://github.com/thesofproject/linux/issues/3206
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20211027021824.24776-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>